I live in a mid terrace cottage with a long narrow garden. I recently had some work done on the roof and the roofer commented that the boundary of our garden is different to where the roofs join - it’s obvious when you look.
Turns out that before I lived here neighbours had a conservatory built so decided to borrow a foot of my garden so that it would fit.
I’ve no idea why this never came up on a survey and there’s clearly not much I can do now but AIBU to be annoyed that my quite small garden should actually be a foot wider?